//
// Mono.Cairo.Surface.cs
//
// Authors:
//    Duncan Mak
//    Miguel de Icaza.
//    Alp Toker
//
// (C) Ximian Inc, 2003.
// (C) Novell, Inc. 2003.
//
// This is an OO wrapper API for the Cairo API
//
// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

using System;
using System.Collections;

namespace Cairo {

	public class Surface : IDisposable {
		[Obsolete]
		protected static Hashtable surfaces = new Hashtable();

		IntPtr handle = IntPtr.Zero;

		[Obsolete]
		protected Surface() {
		}

		[Obsolete]
		protected Surface(IntPtr handle) : this(handle, true) {
		}

		protected Surface(IntPtr handle, bool owner) {
			if (handle == IntPtr.Zero)
				throw new ArgumentException("handle should not be NULL", "handle");

			this.handle = handle;
			if (!owner)
				NativeMethods.cairo_surface_reference(handle);
			if (CairoDebug.Enabled)
				CairoDebug.OnAllocated(handle);
		}

		public static Surface Lookup(IntPtr surface, bool owned) {
			SurfaceType st = NativeMethods.cairo_surface_get_type(surface);
			switch (st) {
				case SurfaceType.Image:
					return new ImageSurface(surface, owned);
				case SurfaceType.Xlib:
					return new XlibSurface(surface, owned);
				case SurfaceType.Xcb:
					return new XcbSurface(surface, owned);
				case SurfaceType.Glitz:
					return new GlitzSurface(surface, owned);
				case SurfaceType.Win32:
					return new Win32Surface(surface, owned);
				case SurfaceType.Pdf:
					return new PdfSurface(surface, owned);
				case SurfaceType.PS:
					return new PSSurface(surface, owned);
				case SurfaceType.DirectFB:
					return new DirectFBSurface(surface, owned);
				case SurfaceType.Svg:
					return new SvgSurface(surface, owned);
				default:
					return new Surface(surface, owned);
			}
		}

		[Obsolete("Use an ImageSurface constructor instead.")]
		public static Cairo.Surface CreateForImage(
			ref byte[] data, Cairo.Format format, int width, int height, int stride) {
			IntPtr p = NativeMethods.cairo_image_surface_create_for_data(
				data, format, width, height, stride);

			return new Cairo.Surface(p, true);
		}

		[Obsolete("Use an ImageSurface constructor instead.")]
		public static Cairo.Surface CreateForImage(
			Cairo.Format format, int width, int height) {
			IntPtr p = NativeMethods.cairo_image_surface_create(
				format, width, height);

			return new Cairo.Surface(p, true);
		}


		public Cairo.Surface CreateSimilar(
			Cairo.Content content, int width, int height) {
			IntPtr p = NativeMethods.cairo_surface_create_similar(
				this.Handle, content, width, height);

			return new Cairo.Surface(p, true);
		}

		~Surface() {
			Dispose(false);
		}

		//[Obsolete ("Use Context.SetSource() followed by Context.Paint()")]
		public void Show(Context gr, double x, double y) {
			NativeMethods.cairo_set_source_surface(gr.Handle, handle, x, y);
			NativeMethods.cairo_paint(gr.Handle);
		}

		public void Dispose() {
			Dispose(true);
			GC.SuppressFinalize(this);
		}

		protected virtual void Dispose(bool disposing) {
			if (!disposing || CairoDebug.Enabled)
				CairoDebug.OnDisposed<Surface>(handle, disposing);

			if (handle == IntPtr.Zero)
				return;

			NativeMethods.cairo_surface_destroy(handle);
			handle = IntPtr.Zero;
		}

		protected void CheckDisposed() {
			if (handle == IntPtr.Zero)
				throw new ObjectDisposedException("Object has already been disposed");
		}

		public Status Finish() {
			CheckDisposed();
			NativeMethods.cairo_surface_finish(handle);
			return Status;
		}

		public void Flush() {
			CheckDisposed();
			NativeMethods.cairo_surface_flush(handle);
		}

		public void MarkDirty() {
			CheckDisposed();
			NativeMethods.cairo_surface_mark_dirty(Handle);
		}

		public void MarkDirty(Rectangle rectangle) {
			CheckDisposed();
			NativeMethods.cairo_surface_mark_dirty_rectangle(Handle, (int)rectangle.X, (int)rectangle.Y, (int)rectangle.Width, (int)rectangle.Height);
		}

		public IntPtr Handle {
			get {
				return handle;
			}
		}

		public PointD DeviceOffset {
			get {
				CheckDisposed();
				double x, y;
				NativeMethods.cairo_surface_get_device_offset(handle, out x, out y);
				return new PointD(x, y);
			}

			set {
				CheckDisposed();
				NativeMethods.cairo_surface_set_device_offset(handle, value.X, value.Y);
			}
		}

		[Obsolete("Use Dispose()")]
		public void Destroy() {
			Dispose();
		}

		public void SetFallbackResolution(double x, double y) {
			CheckDisposed();
			NativeMethods.cairo_surface_set_fallback_resolution(handle, x, y);
		}

		public void WriteToPng(string filename) {
			CheckDisposed();
			NativeMethods.cairo_surface_write_to_png(handle, filename);
		}

		[Obsolete("Use Handle instead.")]
		public IntPtr Pointer {
			get {
				return handle;
			}
		}

		public Status Status {
			get {
				CheckDisposed();
				return NativeMethods.cairo_surface_status(handle);
			}
		}

		public Content Content {
			get {
				CheckDisposed();
				return NativeMethods.cairo_surface_get_content(handle);
			}
		}

		public SurfaceType SurfaceType {
			get {
				CheckDisposed();
				return NativeMethods.cairo_surface_get_type(handle);
			}
		}

		public uint ReferenceCount {
			get {
				return NativeMethods.cairo_surface_get_reference_count(handle);
			}
		}
	}
}